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A teacher asks a student to measure the volume of a pencil sharpener.
Which piece of apparatus would not be useful?
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The graph shows how the speed of a car varies with time at the start of a journey.
Which distance–time graph represents the motion of the car over the same time period?
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532
A student uses a force meter to measure the weights and a balance to measure the masses of four different objects.
He puts his measurements in a table.
Which row is correctly recorded?
[Table_1]
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570
Which substance in the table has the lowest density?
[Table_1]
| substance | mass/g | volume/cm3 | |
|---|---|---|---|
| A | nylon | 1.2 | 1.0 |
| B | cotton | 1.5 | 1.0 |
| C | olive oil | 1.8 | 2.0 |
| D | water | 2.0 | 2.0 |
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The diagram shows a uniform beam 100 cm long. The diagram is not drawn to scale.
The beam remains balanced on a pivot at the 50 cm mark under the action of the forces of 4.0 N, 5.0 N and 6.0 N.
The 4.0 N force is at the 20 cm mark and the 6.0 N force is at the 60 cm mark.
At which point on the beam is the 5.0 N force acting?
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A spacecraft is travelling in space with no resultant force and no resultant moment acting on it.
Which statement about the spacecraft is correct?
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574
A weightlifter picks up a stone ball and places it on a shelf. Each lift takes the same time. Which situation requires the greatest power?
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Electrical energy may be obtained from nuclear fission.
In which order is the energy transferred in this process?
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A person lifts a book from floor level to a shelf. It falls to the floor and a second person lifts it back up to the shelf.
Which statement must be correct?
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A man, attached to an elastic cord, jumps from a platform. He falls 60 m before starting to rise. The length of the unextended cord is 30 m.
The diagrams show four successive stages in his fall.
In which position is elastic (strain) energy and kinetic energy present?
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Liquid is stored in a tank. The area of the base of the tank is $2.2 \, \text{m}^2$ and the pressure at the base due to the liquid is $15000 \, \text{Pa}$.
What is the weight of the liquid?
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581
A liquid is evaporating. The liquid is not boiling.
Which statement about the liquid is correct at an instant in time?
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547
The diagram shows a sealed gas cylinder with a movable piston.
The piston is moved slowly downwards and there is no change in temperature of the gas.
What happens to the average distance between the gas molecules and to the pressure of the gas?
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503
A long, thin bar of copper is heated gently and evenly along its length.
What happens to the bar?
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The diagrams show four examples of thermal expansion. In three of the examples, thermal expansion is useful. In one of the examples, expansion is unwanted and has to be allowed for. In which example is thermal expansion unwanted?
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The diagram shows a pan used for cooking food.
Which row is correct for the materials used to make the base and the handle of the pan?
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500
The diagrams show two patterns produced by water waves.
Which two effects are shown in the diagrams?
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584
Which row correctly defines the frequency and the speed of a wave?
[Table_1]
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A narrow beam of light travels through glass. It reaches the edge of the glass and refracts into the air. What is the angle of refraction?
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The diagram shows a ray of light in air incident on a glass block. Some of the light is refracted and some of the light is reflected. Two angles, $p$ and $q$, are marked on the diagram.
Which row gives the angle of incidence and states whether total internal reflection occurs?
[Table_1]
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507
A photographer sees his image as shown. What could X be?
520
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Visible light, X-rays and microwaves are all components of the electromagnetic spectrum.
Which statement about the waves is correct?
505
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556
What can transmit some types of transverse waves but not longitudinal waves?
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545
What would be the least successful method of magnetising a steel bar?
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An electric current in a copper wire is due to the flow of charge.
Which particles are moving along the wire?
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503
Which row correctly shows a conductor and an insulator?
[Table with options]
556
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546
The diagram shows a circuit containing two resistors of resistance $1.0 \, \Omega$ and $2.0 \, \Omega$.
A voltmeter is connected across the $1.0 \, \Omega$ resistor by connecting P to X.
The reading on the voltmeter is $6.0 \, \text{V}$.
P is moved to point Y in the circuit.
What is the new reading on the voltmeter?
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What is the unit of electromotive force (e.m.f)?
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A student sets up the circuit shown, with a gap XY.
The student wishes to connect a component between X and Y to enable her to vary the brightness of the lamp.
Which component should be used?
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Two resistors, with resistances $R_1$ and $R_2$, are connected in parallel.
The resistance $R_1$ is greater than the resistance $R_2$.
What is the resistance of the parallel combination?
563
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515
Circuit breakers and fuses are devices used to protect a circuit from overloading.
Which statement correctly describes the difference between a circuit breaker and a fuse?
598
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585
Why might it be dangerous to use an electrical appliance in damp conditions?
512
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573
Which diagram shows the magnetic field around a straight, current-carrying wire?
514
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600
When wiring a house, it is important to use the correct cables.
The current ratings of four different cables are listed.
All four cables are used in series in the same circuit.
Which cable is most likely to overheat?
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A very important experiment improved scientists’ understanding of the structure of matter. The experiment involved $\alpha$-particles being fired at a thin, gold foil. What happened?
532
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587
A nuclide has the symbol $^{23}_{11} ext{Na}$.
Which statement about all atoms of this nuclide is correct?
521
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The half-life for lead-202 is 52 500 years.
A sample of lead-202 produces 800 counts/s.
How long will it take for the count rate to drop to 100 counts/s?
545
551
507
Why is a thick shield made of lead needed to protect people from a source of $\gamma$-rays?
595
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532
